/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.api.common.typeutils;

import org.apache.flink.annotation.Internal;
import org.apache.flink.util.Preconditions;

import java.io.IOException;

/**
 * An exception thrown to indicate that a serializer cannot be read.
 * It wraps the cause of the read error, as well as the original bytes of the written serializer.
 */
@Internal
public class UnloadableTypeSerializerException extends IOException {

	private static final long serialVersionUID = 4500388174107930407L;

	private final byte[] serializerBytes;

	/**
	 * Creates a new exception, with the cause of the read error and the original serializer bytes.
	 *
	 * @param cause the cause of the read error.
	 * @param serializerBytes the original serializer bytes.
	 */
	public UnloadableTypeSerializerException(Exception cause, byte[] serializerBytes) {
		super(cause);
		this.serializerBytes = Preconditions.checkNotNull(serializerBytes);
	}

	public byte[] getSerializerBytes() {
		return serializerBytes;
	}
}
